html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
    font-family: sans-serif;
}

.viewport {
    width: 500%;
    height: 100%;
    display: flex;
}

.pageview {
    width: 100%;
    height: 100%;
}

h3 {
    text-align: center;
    color: #fff;
    font-size: 1.7em;
    font-weight: 400;
    padding: 1em 0;
    margin: 0;
}

.pagenumber {
    position: absolute;
    bottom: 50px;
    display: flex;
    width: 30%;
    height: 20px;
    left: 35%;
}

.pagenumber div {
    position: relative;
    flex: 1;
}

.pagenumber div::after {
    content: '';
    background: rgba(255, 255, 255, 0.5);
    width: 10px;
    height: 10px;
    border-radius: 5px;
    position: absolute;
    margin-top: -5px;
    margin-left: -5px;
    top: 50%;
    left: 50%;
}

.pagenumber div.now::after {
    background: rgba(255, 255, 255, 1) !important;
}